i am lost how do i attach clothes to this character it is clipping out when i attach them how do i fix it
First make sure that you're in Rest Pose: in Pose mode you can select all your bones and press altR and altG, or press the Rest Position button in the Properties panel > Data (then press back Pose Position button).
You need to remove a lot of overlaying vertices, so select your cloth mesh, go in Edit mode and press W > Remove Doubles. Increase the Merge Distance value on the bottom of the Tools panel (on the left of the 3D View).
Same thing for the rest of the character, remove doubles.
Now enable the Proportional Editing option on the bottom bar of the 3D View, and move the cloth vertices until it fits the arm. Actually you'd better have a proper topology to do this operation, i.e. quads and not thousands of tris.
Also select your armature and in Edit mode make the bones fit the arm.
Select your character meshes, then the armature, and parent the character meshes with ctrlP > With Automatic Weight.
It works.